Oiler for automobiles



May 26, 1925. 1,539 375 L. A. STANLEY I OILER FOR AUTOMOBILES Filed Jun1924 2 Sheets-Sheet 1 IL W 151 5 May 26, I925.

L. A. STANLEY OILER FOR AUTOMOBILES 2 Sheets-Shet 2 Filed June 9, 1924Patented May 26, 1925.

UNITED STATES LOUIS A. STANLEY, F HILLSBORO, OHIO.

OILER FOR AUTOMOBILES.

Application filed June 9,

To all whom it may concern:

Be it known that I, LoUisA. STANLEY,

a citizen of the United States, and a resident of l-lillsboro, in thecounty of Highland and State of Ohio, have invented certain new anduseful Improvements in an ()iler for Automobiles; and I do herebydeclare that the following is a full, clear, and exact description ofthe same, reference being had to the accompanying drawings, and to thenumerals of reference marked'thereon, which form a part of thisspecification.

This invention relates to oiling systems for internal combustion engineswherein the engine fiy-wheel is utilized as an oil pump for creating anoil pressure in excess of the gravity head due to the elevation of theoil.

It is an object of this invention to provide an improved device of theclass de scribed wherein the oil supply to the. engine is controlled bya characteristic of the engine which varies in proportion to the loadthereon.

It is also an object of this invention. to provide a vacuum operatedcontrol valve for use with splash lubricating systems.

It is a further object of this invention.

to provide an oil collecting chamber having an air dome to equalize theoil supply to the engine under conditions of varying oil levels in theoil sump.

It is another object of this invention to provide in a device of theclass described, an air dome in the oil collecting chamber having an airbleed adapted to prevent the device from becoming air-bound.

Heretofore pressure lubricating systems have been proposed wherein thepressure is varied as a function of the intakemai'rifold.

suction of an internal combustion engine, but such pressure control isinapplicable to splash lubricating systems. It is therefore an object ofthis invention to provide volume control of a splash lubricating system.

Other and further important objects of this invention will be apparentfrom the disclosures in the specification and the accompanying drawings.u

The invention (in a preferred form) is illustrated in the drawings andhereinafter more fully described.

On the drawings: 1

Figure 1 is a side view of an engine to which the device of thisinvention has been attached.

Figure 2 is a rear view thereof with a por- 1924-. Serial No. 718,682.

tion of the fiy-wheel housing broken away to show the relation of parts.

Figure 3 is an enlarged view of the device of this invention taken ontheline 3-3 of Figure 2.

Figure 4: is a top plan view thereof.

Figure 5 is an enlarged bottom plan view of the device.

Figure 6' is a sectional view on line 6-6 of Figure 8.

Figure 7 is a section on line 7-7 of F igure 6.

Figure 8 is a section on line 88 of Figure (5.

As shown on the drawings:

The device of this invention, in general, comprises an oil collectingdevice, to be described in detail hereinafter, fitted on the fly-wheelhousing 10 of an engine 11 and having an oil pipe 12 leading to thefront hearing or front end of the splash pan of the engine. The supplyof oil admitted to this pipe 12 is controlled in inverse volume relativeto the suction or depression in the intake manifold of the engine bymeans of a valve controlling a passage 13 leading from a nipple} 1a towhich the pipe 12 is attached. An enclosing easing 15 has a cylindricalbore 16 intercepting the passage 13 at right angles and a plungeroperates inthis bore, comprising a cylindrical section 17, having alongitudinal groove 18 adapted to function as a dash pot in conjunctionwith the closed end20 of the bore 16, and another cylm c drical section21 spaced from the first section toprovide a section 22 of reduceddiameter and a section 23 of conical form, disposed across the oilpassage 18. The cylindrical section 21. is provided with'a plurality ofgrooves 24; adapted to form oil seals,

and is also provided with a section of reduced diameter 25 of a lengthequal to or greater than the maximum movement of the valve, anatmospheric inlet port 26 being provided to this section 25 toneutralize suction on the oil passage due to the intake manifolddepression, and thereby pre vent leakage of oil past the valve into theintake manifold. The valve is normally urged inwardly towards full openposition by a spring 27 seating against a plug 28 having a pipeconnection 29 to the intake manifold 30 of the engine.

An oil. collection chamber 31 is provided with an oil scoop 32 extendingthrough the fiy-wheel housing 10 in the plane of revolution ofprojecting parts of the fly-wheel, preferably the starter gear 33. Thisarrangement of placing the scoop opposite the starter gear teeth effectsa utilization of the greatest effective oil discharge periphery. Thescoop is so shaped as to utilize the centrifugal force in the oil flungoff the fly-. wheel to elevate the 'oil into the chamber 31 where it isretained at a level determined by the projecting inner end of the scoop.32. The chamber 31 is closed by a cover 3.5 having a dome 36 directlyabove the scoop to deflect the oil and form an air dome. Under someoperating conditions such as low oil supply, the chamber would becomeair bound, preventing flow of oil thereinto, so. an air outlet passage36, opening above the normal oil level,-is provided in a bolt 37whichserves both to secure the cover in place, and to secure the entireassembly in place on the fly-wheel housing. Yielding washers 38' areprovided in recesses around both the bolt and scoop locations to sealagainst oil leakage at these points, and small projections 3.9 areprovided so located with respect to the bolt as to form a triangle withthe bolt near the center thereof to form a stable support for the deviceon the curved surface of the fly-wheel housing.

The ope ntion is as follows:

itli the parts connected up as described herein and shown in Figures 1and 2; when the engine is running, the oil in the sump, the level ofwhich extends above the bottom of the fly-wheel, is picked up by theflywheel and carried up and thrown off the fly wheel by centrifugalforce, the scoop gathering a considerable quantity of oil and convertingthe energy of impact into pressure in the chamber 31, the air outletfrom the dome being insufficient to entirely dissipate this pressureeven when the control valve is nearly closed as under idling conditionswith a high intake manifold suction. The pres sure within the chamber 31is sufficient to feed oil, in a quantity determined by the effectivepassage past the valve, even when the engine is at such an inclinationthat the oil pipe would not give a gravity flow of oil to the front ofthe engine.

As the throttle of the engine is opened the suction in the manifolddecreases allowing the spring to move the valve towards more openposition; the cone-shaped part of the valve giving a graduated openingwhich allows more oil to flow from the chamber 31 to the front of theengine. lVith a fully open throttle the maximum flow of oil is assuredbecause under such conditions the intake suction is v ry low and theengine is developing its maximum power at that speed. lVhen the throttleis closed the piston is drawn up against the pressure of the spring dueto increased manifold suction and the flow of oil is determined by thearea around the reduced cylindrical section 22 of the valve, which isintended to supply sufficient oil to. protect the engine whilepreventing an excess supply which would cause oil pumping past thepistons due to the high suction in the cylinders with a closed throttle.

As hereinbefore stated, the air dome provided above the scoopserves tomaintain a constant supply of oil to the regulating valveeven when theoil level in the sump falls below the level capable of furnishing asuiiicient supply for gravity feed to the engine. The particularposition of the scoop over the gear teeth and the angular positionthereof relative to a vertical plane through the axis of the fly-wheelis. particularly ad vantageous in that a certain portion of the oil.is-deflected to flow over the transmission bands, keeping the same cooland in good condition and thus greatly improving the operation of theautomobile.

I 21111 aware that numerous details of construction may be variedthrough a wide range without departing from the principles of thisinvention, and I therefore do not purpose limitingthe patent grantedhereon otherwise than necessitated by the prior art.

I claim as my invention:

1. In combination with an internal combustion engine having a flywheelrunning in an oil sump, a scoop positioned to receive oil thrown oil"said fiy wheel by centrifugal force, a collecting chamber for the oilfrom said scoop having an air dome and an air bleeder passage therefrom,an oil delivery pipe, and a control valve therefor adapted to meter theoil in inverse proportion to the engine intake manifold depression.

2. In a splash lubricating system an oil collecting scoop, a chamberreceiving oil therefrom, an air dome above the oil level in saidreceiving chamber, an air bleed from said ail dome, and means formetering the delivery of oil from said chamber in response to varyingrequirements of an engine.

3. In a lubricating system of the class described, an oil collectingchamber, an outlet therefrom and a valve controlling said outlet,comprising a cylindrical dash pot section, a cylindrical piston section,and a tapered section therebetween adapted to be shifted across theoutlet to vary the effective area thereof.

4;. In a lubricating system of the class described, an oil collectingchamber, an outlet therefrom and a valve controlling said outlet,comprising a cylindrical dash pot sec- 1 tion, a c lindrieal pistonsection, a tapered section therebetween adapted to be shifted across theoutlet to vary the effective area thereof, and a connection to a sourceof varying sub-atmospheric pressure adapted to move said valve inproportion to the pressure drop.

5. In a lubricating system of the type described, a casing having an oilsupply passage, a plunger intersecting said passage, a conicalsection onsaid plunger adapted to vary the etl'cctive area of said passage, andconnection to a source of sub-atmospheric pressure for moving saidplunger.

6. The combination with an automobile including the motor andtransmission thereof, of a casing containing oil below the motor andtransmission mechanism, a flywheel having gear teeth adapted to pick upoil from said casing and an oil control mechanism having an oil scoop sopositioned above the gear teeth of said fly-wheel as to deflect aportion of the oil over the transmission mechanism.

7 I11 a lubricating system of the class described, a control valveresponsive to the vacuum produced in an engine intake manifold, andmeans preventing the suction from drawing oil past the valve, comprisingan air port in the valve casing between the valve proper and the suctionconnection.

8. In a splash lubricating system a scoop extending into the flywheelhousing, an oil collecting chamber having an air space above the normaloil level therein and a connection forming an air bleed from said airspace into the flywheel housing.

9. In a splash lubricating system a scoop extending into the fiyuvheelhousing, an oil collecting chamber, a cover therefor forming an airdome, and a passaged bolt securing said cover and chamber to theflywheel housing and forming an air relief from said air dome to theinterior of said housin 10. In a lubricating system a housing containinga rotatable member, a casing on the housing adapted to receive lubricantthrown by said rotatable member, an air space in the casing above thenormal lubricant level therein, and an air bleed from said air space.

In testimony whereof I have hereunto subscribed my name in the presenceof two subscribing witnesses.

LOUIS A. STANLEY. lVitnesses IRVIN MoD. SMITH, ROMA RoBrNsoN.

